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1. 发明专利

JPH07268503A METHOD FOR STABILIZING ALUMINUM DROSS 失效
公开(公告)号：JPH07268503A
公开(公告)日：1995-10-17
申请号：JP6090394
申请日：1994-03-30
申请人： OSAKA PREFECTURE , TANAKA RYOZO
发明人： KOMODA SHUNSAKU , YOKOI MASAYUKI , SHIROMA SHIGENOBU , HATANO YASUHIRO , YAMAZAKI KIYOSHI , TANAKA RYOZO
IPC分类号： C22B7/04 , C22B21/00
摘要： PURPOSE:To stabilize aluminum dross, to facilitate handling and storing of the aluminum dross and to effectively utilize the aluminum dross by adding a specific amt. of water to the aluminum dross and mixing and stirring both, then holding the mixture and evaporating the added water by the heat of hydrolysis. CONSTITUTION:The water is added at 5 to 50wt.% to the aluminum dross in the form of fine powder recovered in primary and secondary refining process of aluminum and both are mixed and stirred by a mixer. The aluminum dross is thereafter held in a vessel where the added water is evaporated by the generation of heat according to the hydrolysis. Combustible gases contg. the harmful gases generated in part thereof at this time are preferably captured and burned. The stabilized aluminum hydroxide is formed by the hydrolysis. Particles of unreacted metal aluminum, aluminum nitride, magnesium silicate, etc., are stabilized as dense protective films.

2. 发明专利

JP2001158924A METHOD OF RECOVERING ZINC IN ZINC-CONTAINING WASTE MATERIAL 失效
公开(公告)号：JP2001158924A
公开(公告)日：2001-06-12
申请号：JP34413699
申请日：1999-12-03
申请人： OSAKA PREFECTURE
发明人： YOKOI MASAYUKI , YAMAUCHI NAOHIKO , MIYAUCHI SHUHEI , IMOTO TAIZO , IWASAKI KAZUYA , MORI MASAHIRO , YAMAZAKI KIYOSHI , KOMODA SHUNSAKU
IPC分类号： B09B3/00 , C22B5/04 , C22B7/00 , C22B7/02 , C22B7/04 , C22B19/04 , C22B19/30
摘要： PROBLEM TO BE SOLVED: To provide a new technique, in which zinc-containing iron base waste material and aluminum dross are simultaneously treated and the harmlessness of both waste materials and the recovery of useful metals are carried out at a low cost without needing a large quantity of energy supply from the outer part. SOLUTION: In a reaction vessel for holding the mixed material to be treated of the iron base waste material containing zinc and the aluminum dross, a primary thermite reaction is started in the vertical cross sectional direction of the mixed material to be treated with a termite reaction starting agent, and a secondary thermite reaction is progressed in the horizontal direction of the mixed material to be treated with the heat generated in the above process and thus, this recovering method of the zinc in the zinc-containing iron base waste material, has the peculiarity, in which the developed zinc vapor is cooled and removed.

3. 发明专利

JP2001157885A METHOD FOR DETOXIFYING ALUMINUM RESIDUAL ASH 失效
公开(公告)号：JP2001157885A
公开(公告)日：2001-06-12
申请号：JP34413899
申请日：1999-12-03
申请人： OSAKA PREFECTURE
发明人： YOKOI MASAYUKI , YAMAUCHI NAOHIKO , MIYAUCHI SHUHEI , IMOTO TAIZO , IWASAKI KAZUYA , MORI MASAHIRO , YAMAZAKI KIYOSHI , KOMODA SHUNSAKU
IPC分类号： B09B3/00 , A62D3/40 , A62D101/08 , A62D101/22 , A62D101/28 , C01F7/02
摘要： PROBLEM TO BE SOLVED: To provide new technique for efficiently treating aluminum residual ash without supplying a large quantity of energy from the outside not only to detoxify aluminum residual ash but also to pyrolyze a very small amount of dioxin contained in aluminum residual ash. SOLUTION: In a reaction container housing a mixture to be treated of ferrous oxide type waste and aluminum residual ash, aluminum residual ash is detoxified by starting thermit reaction in the vertical cross-sectional direction of the mixture to be treated by a thermit reaction initiator and advancing secondary thermit reaction in the lateral direction of the mixture to be treated by the generated heat of reaction to oxidize metal aluminum and an aluminum compound in aluminum residual ash.

4. 发明专利

JP2000321247A METHOD FOR ANALYZING METAL ALUMINUM IN ALUMINUM DROSS 失效
公开(公告)号：JP2000321247A
公开(公告)日：2000-11-24
申请号：JP12679199
申请日：1999-05-07
申请人： OSAKA PREFECTURE , JAPAN ALUMINUM ASS
发明人： ISHIJIMA TEI , URATANI FUMIHIRO , YAMAZAKI KIYOSHI , KOMODA SHUNSAKU , OGAWA SEIICHIRO
IPC分类号： G01N27/72
摘要： PROBLEM TO BE SOLVED: To quickly, semi-automatically, and accurately measure Al content from aluminum dross by arranging primary and secondary electromagnetic coils at the outer periphery of a nonconductive container accommodating aluminum dross and measuring a secondary voltage that is generated according to the applied primary voltage. SOLUTION: Primary and secondary electromagnetic coils L1 and L2 are arranged at the upper and lower portions of the outer periphery of a pipe made of acryl resin (a sample container) accommodating aluminum dross, and a capacitor C is connected in parallel with the primary electromagnetic coil L, thus increasing a voltage change related to the primary electromagnetic coil L. Also, a voltmeter V is connected to the secondary electromagnetic coil L2. Then, a primary voltage is applied to a primary electromagnetic coil L with a specific frequency from a signal source, and a secondary voltage that is generated in the secondary electromagnetic coil L2 corresponding to the primary voltage is measured. In this case, the signal frequency changes according to the signal frequency, metal Al content in the sample, and a grain size. Therefore, by fitting each measured value to an approximation expression, the metal Al content in the aluminum dross can be easily and quickly measured by anyone based on the voltage change.

5. 发明专利

JP2002263661A METHOD FOR TREATING FORMALIN WASTE LIQUID AND AUTOMATIC TREATING DEVICE 失效
公开(公告)号：JP2002263661A
公开(公告)日：2002-09-17
申请号：JP2001062617
申请日：2001-03-06
申请人： OSAKA PREFECTURE , ASUKA MEDICAL KK
发明人： HAYASHI HIDEYUKI , SANO FUMIYOSHI , IWASAKI KAZUYA , MIYAUCHI SHUHEI , IMOTO TAIZO , YAMAZAKI KIYOSHI , YOBIKO YOSHIHIRO , OGAWA HIROSHI , SATO YUKIHIRO
IPC分类号： C02F1/02 , C02F1/58
摘要： PROBLEM TO BE SOLVED: To provide a method for treating a formalin waste liquid and an automatic treating device for a formalin waste liquid which can remove formaldehyde with high efficiency, which is excellent from the viewpoint of economy, workability and safeness, and which can be sufficiently used with a domestic power supply without requiring a large-size equipment. SOLUTION: The method for treating a formalin waste liquid is carried out by adding caustic soda by 6 g to 15 g to 100 ml of the formalin liquid controlled to at 40 deg.C to 80 deg.C to decompose formaldehyde, neutralizing the liquid with sulfuric acid or the like and then discharging the treated liquid.

6. 发明专利

JPS52152803A METHOD OF EXTRACTING HEAVY METALS FROM INDUSTRIAL WASTE 失效
公开(公告)号：JPS52152803A
公开(公告)日：1977-12-19
申请号：JP7001676
申请日：1976-06-14
申请人： OSAKA PREFECTURE
发明人： KOMODA SHIYUNSAKU , YAMAZAKI KIYOSHI , YASUDA KENJI , NATSUKAWA KAZUTERU
IPC分类号： C22B34/32 , C02F11/00 , C22B3/00 , C22B7/00 , C22B15/00 , C22B19/00 , C22B19/20 , C22B19/30 , C22B23/00 , F23G7/00

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